@Article{ 
  BaChJePrSi18,
  author = { Barilari, Davide and Chitour, Yacine and Jean, Frédéric and Prandi, Dario and Sigalotti, Mario },
  title = { On the regularity of abnormal minimizers for rank 2 sub-Riemannian structures },
  journal = { Journal de Mathématiques Pures et Appliquées },
  year = { 2020 },
  doi = { https://doi.org/10.1016/j.matpur.2019.04.008 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3832/ },
  note = { cvgmt preprint}
}